Patent No. US11354709 (titled "Attributing offline conversions to online activity") on Jul 14, 2015. The application was issued on Jun 7, 2022.
’709 is related to the field of digital advertising and consumer behavior tracking. Specifically, it addresses the technical challenge of closing the loop between online ad impressions and real-world actions, such as visiting a retail store or making a purchase. Traditional systems struggle to link these environments because mobile apps often lack cookies and there is no native identifier that bridges a web browser’s history with a physical point-of-sale transaction.
The underlying idea behind ’709 is to use a mobile device as a persistent bridge between digital exposure and physical proximity. By deploying Bluetooth Low Energy (BLE) beacons at specific locations—such as store aisles or product displays—the system can detect when a user who was previously served a specific digital ad enters the physical vicinity of the advertised product. The invention moves beyond simple location tracking by analyzing signal characteristics to infer the quality of the user's real-world interaction.
The claims of ’709 focus on a method and system that correlates advertisement delivery data with beacon-detected proximity events within a specific viability window. The independent claims require not just detecting a signal, but calculating the user's proximity and duration of stay to categorize their physical behavior. This process transforms raw signal strength and time data into specific behavioral insights, such as whether a user merely walked by or actively engaged with a product.
In practice, the system utilizes a behavioral categorization engine that interprets the consistency and strength of the BLE signal. It distinguishes between five distinct states: browsing (walking by), gazing (stopping briefly), engaging (lingering near products), purchasing (completing a transaction via the beacon), and abandoning (leaving the range quickly). This allows the server to attribute a specific level of success to an online campaign based on the depth of the offline interaction.
This approach differs from prior solutions that rely on disparate third-party data or broad GPS coordinates, which lack the precision to identify interactions with specific products. By requiring the satisfaction of a temporal viability window and using signal-strength-based behavior modeling, the invention provides a direct, deterministic link between a digital impression and a physical conversion, rather than relying on probabilistic matching or general store-visit metrics.
In the mid-2010s when ’709 was filed, digital advertising attribution was typically implemented using third-party browser cookies to track user interactions across web domains. At a time when systems commonly relied on these browser-based identifiers to link online exposures to subsequent actions, hardware and software constraints made the correlation of offline physical presence to online activity non-trivial. Mobile application architectures often lacked a unified cookie environment, and increasing privacy-oriented defaults in mobile operating systems restricted the persistence of traditional tracking mechanisms, creating a technical gap between digital ad delivery and physical retail conversions.
The disclosed invention represents a technical advancement through an architectural shift from probabilistic data matching to direct, proximity-based attribution. By integrating short-range wireless beacon signaling with a centralized server architecture that maps device identifiers to specific physical locations and advertising logs, the system enables the precise measurement of offline conversions. This solution overcomes the technical constraint of fragmented user identities across different platforms by utilizing real-time signal strength and duration data to verify a user's physical presence near specific subjects, thereby establishing a direct causal link between digital campaign exposure and physical store visits.
This patent contains a total of 16 claims, with claims 1 and 9 serving as the independent claims. The independent claims focus on a computer-implemented method and system for linking online advertising to offline consumer activity by using beacon signals to track a user's physical proximity to a product and categorizing their behavior into specific types, such as browsing, gazing, or purchasing, within a defined viability window. The dependent claims serve to further define the technical implementation, such as the use of software development kits on mobile devices, the delivery of ads across different devices, and the application of conversion data to optimize or modify advertising campaigns.
Definitions of key terms used in the patent claims.
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